Cover seal for storage batteries



Sp. l 1924.

. H. c.` GiLLETTE covER SEAL Foa STORAGE BATTERIES Fiied Nov. s

z at? I wm@ Wd? @Mm Patented Sept. lo, l-l

i@ 1, s je er HELEN C. GLLETTE, OE; ELMHUET, NEW YORK, LSSGNOR 'EG TEEPREEF-LTE CO. NC., A COR'PORATXQN C?? NEW' YRE'.,

l COVER SEAL FOR STGRAGE BAttTiEli/IES.

Application tiled november S, 19m. Serial D''o, Slfi.

To all whom t may con cem.'

lle it known that lfl'lnirnN GiLLni'rE, a citizen of the United States,residing at Elmhurst, Long'lsland. in the county of Queens and State ofNew York, have inn rented certain new and useful improvements in CoverSeals lor Storage Batteries, ot 'which the following; is aspecification.

This invention relates to the* art of seaiing storage batteries` andparticularly to a more etiicient seal for the joint between the coverand the jar of a storage battery.

lleretotore. sealing. compound has been applied in a liquid state to thejoint between the corel' and the jar and since there is al ways more orless space between the jar and the eo\'er,'so.me of the heated liquidsealing' compound iiows througl this space into the battery properbefore the compound congeals. The principal object of this invention isto providea sealingl means which shall render it impossible for theseaiing compound to flow into or pass the joint between the cover andjar.

Generally speaking. the invention consists in applying to the jointbetween the cover and the jar sealing compound that has congcaled priorto its application -to the joint, so ast-o form a foundation for theapplication of additional sealing compound at a higher temperature andin a liquid state to cover the congealedsealing compound and theadjoining parts of the jar and the cover. f

The above and other objects and the novel features of the invention willbe apparent from the following: description taken in connection with theaccompanying drawings in which Figure l is a sectional View of a portionof a storage battery illustrating the application oi my inventionthereto, and Fig-` Aure 2 is a plan view of one form of sealing stripemployed in carrying out my in- Vention.

lteterrinpT to Figure l, l designates a cell jar of any usual orpreferred construction adapted to contain the usual storage .batteryplates or elements l, electrolyte, and connecting members of the storagebattery. he upper end ot the jar is substantially closed by a cover C,both jar and cover being` desir-ably ot acid resisting and insulatingmaterial such as hard rubber. lVithin its margin the cover may have adownwardly and outwardly inclined surface C terminating at the upperside of an mitwardly projecting flange C. whereby, when the cover isinserted into 'the jar, es

shown, a groove Gr is formed to receive the l iupr substance isintrodiured into the groove Y (l, the leakage ot such substance'into-the jar below the cover is avoided. l

The joint at the space il is desirably bridged by a strip comprisingsealing com pound that nas congested prior to its application to saidjoint. is illustrated, for example, in Figures l and 2, a narrow strip Sot material such as fabric may be saturated or coated with sealingcompound in a liquid and heated condition, and allowed to cool tocongeal said sealing compound. strip S may then be applied to the jointbetween the jar and the cover to bridge the space A, as illustrated inFigure l. Then additionalsealing compound B heated to a highertemperature may be introduced as a liquid or plastic- :into thegroove Gto lill the latter and to cover the sealing` strip S and the adjoiningparts or" the jar .l and cover C. The additional seal B introduced in aheated and liquid state will unite with the sealing compound on thestrip 'S and adhere to the adjoining' surfaces of the jar A and cover Cand thus provide a unitary liquid tight seal between the cover and ther. j

@ther and equivalent means of applying a bridge ol sealing' compound atthe joint between the jar and the cover may be employe-d. however, thejtabrio strips carryinglr congealed sealing compound'are moresatisfactory because theym'are easier to handle ano. ihold the sealingcompound together mores securely. For sonne purposes it is satisfactoryto extrude strips of eongealed sealingi compound ontothe joint betweenthe cover and the jarto form a bridge at tha cme? and.

@hewn in. Figui@ 2. Title cast cwugeued srps Comprising sealing wompoundmay be ns; zum th@ goove G wbrdge ih@ jon: between the Covey and h@ jas,after' which the addoxaw. seaing cA mpffum B may' be apped. The pe-ormasmng; slp thus povc-.es a. familia-tion im the major poton @if 15h@ seal@n pelmis the Us@ of a Sfming wmpo'und for suh mmjm 'gorion that has a.campamtvely lmv mai mg point and ,is mom msstam so mpezw @um changes. itwill be undarstvoo. that @the Sealing mpound of she sealing strips Hwybe et'he: the Same making pdmt o? of a higher 0i" www* melting' peintthan that of @he saalimg mmpcund E, as dresd and determined by spaaicrequemens.

Th@ use and advamages O the improved Sealing strips w be apparent 'mmthe .ffm'egoing cesmfipton, and while the invention ha@ ben dscsed indetail? it WH be undestcnd hm is not to 'be limited i@ n@ ex-ast formsshown and descrbed.

daim?- L Process of Seang coveis in storage batey jars 'that comprisescongeaing asphatii sealing compmmd in sirp form., ap

pyng such cmlgeaed sealing strip acmss' thea joint between the euvel*and the jar of a sfsmge batey, and than' appying ddh tiona asphatcsealing compound in a less conaaed conctcn to une with and, cowl' sain.Strip and the adjoining pars of im said ja?? .and cvec.

2. .Erncesg of Sfeaing @wem in stoffige' bazary jars hm; compsescoating; strip Uf bc wih sealing compound. applying such sealing s-pam'oss theifjnut bewezen e of a smcag@ bafsery, and ppying aditonasealing compound to unit@ W'h sealing Compound on. Said strip and tozover adjoining sufaces o* said jz and. cvfe.

mme.

